Stemma

What Stemma does

Stemma Srl is an Italian manufacturer of polyurethane molding machinery and complete turnkey production plants for the global footwear industry, headquartered in Cornuda (TV) in the Veneto footwear-machinery district. The company designs and builds industrial equipment used by shoe factories worldwide to produce safety footwear, trekking boots, military footwear, sport shoes, sandals, clogs, galoshes, and polyurethane boots, and reports installed systems in more than 25 countries across Europe, Asia, and the Americas. Stemma's offering is sold as customized equipment, with configuration (number of stations, automation level, and material handling) tailored to each customer's requirements and supported through direct sales from Italy and a regional Asia contact channel.

The technology portfolio spans three core production processes — direct injection of polyurethane on the upper (FORMULA and FORMULA SMART), RPU spray (SIGNUM, FMX, FORMULA RPU), and PU pouring into open mould (KRONOS, SAB) — augmented by proprietary enabling technologies. NUCLEOOS (scheduled for 2026 launch) applies CO2 physical foaming to cut polyurethane consumption by up to 45%. RE-YU (launched 2023) enables in-process recycling of polyurethane waste, allowing up to 15% recycled content without quality loss. PLUS2 and SWAP are patented double-ring moulding systems for three-density soles, with granted patents in Italy, Germany, the United States, China, India, Russia, Turkey, and Brazil. Automation is delivered through the PRO-TRAC production line and robotic cells integrated with ABB anthropomorphic robots, complemented by the V.A.R. video-assisted process monitoring system, the Stemma data_manager web-app for Industry 4.0 remote monitoring, and a hydrodynamic servo-system extending dosing-valve life up to 10x versus conventional designs.

Stemma's business model centers on direct B2B enterprise sales of high-value capital equipment, augmented by technology licensing and patent royalties (notably for PLUS2 and SWAP in the eight major international markets). Pricing is quote-based and configuration-driven, with no public list pricing. Go-to-market is built around participation in major international footwear trade shows (Simac Tanning Tech, A+A Düsseldorf, ANPIC Mexico, ILF Indonesia, IILF India, China Leather Fair) and direct sales from the Italian headquarters. The firm has 11-50 employees, no public revenue disclosure, no outside funding rounds, and no identifiable parent, consistent with a founder- or family-owned industrial niche player with a long specialization in polyurethane footwear technology dating to the late 1980s.

Name

Stemma

Legal name

Stemma Srl

Website

https://stemmasrl.com

Company type

Private

Operating status

Operating

Headcount range

11–50 employees

Short description

Stemma Srl is an Italian manufacturer of polyurethane molding machines and automated production plants for the global footwear industry, selling customized systems to safety, sport, trekking, and military footwear producers across more than 25 countries.

Ownership category

akta.pro rank

Product category

Industrial Footwear Machinery

NAICS

Plastics Product Manufacturing (3261)

SIC

Rubber & Plastics Footwear (3021)

akta.pro industry

PRIMARYIMANAFAE

Consumer Products Injection Molding (Housewares, Toys, Personal Care)

Industrials, Manufacturing & Construction/Plastics & Rubber Manufacturing/Injection-Molded Plastics Manufacturing

Keywords

• Polyurethane footwear machinery
• Direct injection machines
• Shoe sole manufacturing
• Polyurethane molding systems
• Footwear production equipment

Headquarters

HQ city

Cornuda

HQ country

Italy

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Operations, Supply Chain, Technology or R&D, Personnel, Marketing or Sales

Revenue model

1. Polyurethane Machinery Sales: Sale of industrial polyurethane molding machines and automated production lines for footwear manufacturing. Revenue generated from direct sales of equipment including FORMULA, SIGNUM, FMX, KRONOS, SAB machines and complete PRO-TRAC production lines. Machines are customized and configured based on client requirements.
2. Technology Licensing and Patents: Revenue from proprietary technologies including PLUS2 and SWAP systems for triple density soles, licensed in major international markets (Italy, Germany, United States, China, India, Russia, Turkey, Brazil).

Go-to-market motion1 record

Distribution channels2 records

Marketing channels6 records

Core offering

Stemma designs, manufactures, and sells industrial polyurethane molding machines and complete automated production plants for the global footwear industry. The portfolio spans direct injection machines (FORMULA), RPU spray machines (SIGNUM, FMX, FORMULA RPU), and PU pouring machines (KRONOS, SAB), complemented by automation lines (PRO-TRAC), ABB-integrated robotic cells, and proprietary process technologies including NUCLEOOS (CO2 foaming), RE-YU (PU recycling), and PLUS2/SWAP (triple-density soles).

Product overview

Stemma is a manufacturer of industrial polyurethane processing machinery for the footwear industry, offering three main production technology categories: Direct Injection on Upper (FORMULA, FORMULA SMART), RPU Spray Technology (SIGNUM, SIGNUM LAB, FMX, FORMULA RPU), and Pouring into Open Mould (KRONOS, SAB). The portfolio includes advanced technologies such as NUCLEOOS (CO2 foaming for ultra-lightweight soles), RE-YU (polyurethane recycling), and PLUS2/SWAP systems for triple-density soles. Supporting automation includes the PRO-TRAC automated production line and robotic units with ABB robots. The V.A.R. system and hydrodynamic servo-system provide process monitoring and precision dosing. Stemma data_manager web-app enables remote production monitoring for Industry 4.0 operations.

Differentiator

Problem solved

Functional benefit

Products and services

• FORMULA Automated rotary machine for direct injection of polyurethane soles onto shoe uppers. Supports single and double density productions (PU, PU/PU, TPU/PU) and processes including in-mold coating, vacuum film, and 3-density soles. Sold to footwear manufacturers globally.
• FORMULA SMART Compact version of the FORMULA direct injection machine designed for small productions, samples, and footwear R&D departments. PU direct injection with 2-8 stations.
• SIGNUM Automatic rotary machine with RPU spray technology for manufacturing polyurethane boots and clogs. 12-16 stations. SIGNUM 20 delivers a 30% productivity increase versus traditional processes.
• SIGNUM LAB Laboratory-scale rotary machine using RPU spray technology, designed for R&D departments and small-batch production. 2-8 stations.
• FMX Automatic rotary machine with RPU spray technology for polyurethane soles manufacturing. 24-36 stations. Supports RPU, RPU/RPU, and RPU/PU pouring configurations.
• FORMULA RPU Combined RPU spray technology and PU direct injection on upper for shoe manufacturing. 18-36 stations. Supports triple density production.
• KRONOS Automatic rotary machine for PU pouring into open mould for soles manufacturing. 18-36 stations. Available in PU pouring and PU pouring/RPU configurations.
• SAB Semi-automatic static machine for PU pouring into open mould for soles and insoles production. 12-24 stations, with self-cleaning pouring unit.
• PRO-TRAC Automated Production Line Automated production line connecting a rotary injection machine with upper-processing robotic cells and manipulators for loading/unloading lasts from a conveyor system. Enables maximum production efficiency with continuous process monitoring.
• Robotic Units Automated cells integrating ABB anthropomorphic robots for release-agent application, upper edge roughing, mid-plate application, pick-and-place operations for lasts handling, and in-mould coating. User-friendly control interfaces for the footwear industry.
• NUCLEOOS CO2 foaming technology for ultra-lightweight polyurethane soles. Uses physical action of CO2 or nitrogen combined with polyurethane chemical reaction to generate low-density foam. Reduces polyurethane consumption by up to 45%. Sold as a plug-and-play unit that integrates with STEMMA direct-injection, pouring, and spraying systems.
• RE-YU Polyurethane Recycling Technology Polyurethane recycling technology enabling reuse of PU waste from injection processes. Material is reduced to powder/granules and re-injected via an innovative mixing and dosing system. Soles with up to 15% recycled PU maintain quality characteristics. Designed to integrate with STEMMA direct injection machines.

Quantifiable outcome

• Up to 45% reduction in polyurethane consumption with NUCLEOOS CO2 foaming technology
• +4 more outcomes

Named customers1 record

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration1 record

Feature11 records

Partnerships

One partnership is on record.

• ABBcoreTechnology or IntegrationABB provides anthropomorphic robots integrated into STEMMA's robotic units for automated manufacturing cells. Robots are used for release-agent application, upper edge roughing, mid-plate application, automatic loading/unloading of lasts, and in-mould coating operations.

Scale indicators3 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Atom S.p.A. Italian manufacturer of machinery and equipment for footwear production, including lasting and assembly systems. Shares STEMMA's specialization in providing complete footwear production plants from an Italian base.
• Comelz: Italian manufacturer of machines and equipment for the footwear industry, particularly in cutting and upper processing. Adjacent competitor sharing STEMMA's geographic base in Italian footwear manufacturing machinery.
• Cannon: Italian-headquartered manufacturer of polyurethane processing equipment and high-pressure dosing machines with strong footwear industry presence. Directly comparable on PU dispensing and molding machinery product lines.
• Industrie Main: Italian manufacturer of molding machines and complete plants for the footwear and polyurethane processing industry. Direct comparable on customized PU sole production equipment supplied to global footwear manufacturers.
• Desma: German manufacturer of polyurethane direct-injection and slush molding machines for footwear soles. Direct competitor to STEMMA in the PU shoe sole equipment segment, with comparable machinery lines and global customer base.
• Hennecke: German manufacturer of high-pressure polyurethane processing machinery and dosing systems serving footwear, automotive, and appliance industries. Overlaps with STEMMA on PU dosing, mixing, and injection technology relevant to footwear soles.

Broad incumbents

• ENGEL: Austrian global manufacturer of injection molding machinery for plastics processing. Competes with STEMMA at the machinery level for the footwear sole injection equipment market with significantly larger scale and product breadth.
• KraussMaffei: German global manufacturer of machinery for plastics and rubber processing, including polyurethane reaction injection molding (RIM) equipment. Serves footwear as one of many industries with broader R&D and service scale than STEMMA.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UCMGBGdSaGPNG158Hn3DJnKQ/featured
• Facebookfacebook.com/STEMMApolyurethanemachine
• LinkedInlinkedin.com/company/stemmasrl

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Stemma